Anyones HCG not quite doubled?

Guys I'm going out of my mind so I had my bloods done monday I'm 5 weeks pregnant they re did them yesterday and they said they had rose by 60% but average is 66%

I burst out crying the nurse was lovely and said it's not a massive concern but they need to re do them on Friday and if they still haven't doubled they will re scan me Monday.

I've not slept Google is my worst enemy read all sorts of horror stories

Its took so long to finally get pregnant and I'm fearing the worst

Anyone had anything similar and has a positive outcome?